Last Updated
：2025/11/20
trigonometric function
Noun
Japanese Meaning
直角三角形における角度に基づき、その角に隣接する2辺の比（例：正弦）を用いて定義される関数。 / 直角三角形の各角度に対し、その辺の比から1を引くか、1からその比を引く形で定義される関数（例：カバーサイン）
（ plural ）
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(trigonometry) Any function of an angle expressible as the ratio of two of the sides of a right triangle that has that angle (e.g., sine), or that subtracts 1 from such a ratio or subtracts such a ratio from 1 (e.g., coversed sine).
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trigonometric function
A trigonometric function like sine or cosine can model the oscillation of a pendulum for small angles.
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A trigonometric function like sine or cosine can model the oscillation of a pendulum for small angles.
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